Clock



FIG. 1 is a front elevational view of the clock in accordance with the present invention;

FIG. 2 is a back side elevational view of the clock;

FIG. 3 is a top plan view of the clock;

FIG. 4 is a bottom plan view of the clock;

FIG. 5 is a left side view of the clock;

FIG. 6 is a right side view of the clock; and,

FIG. 7 is a front perspective view of the clock. 

The ornamental design for a clock, as shown and described. 